An archaic common name for any reddish-brown compound formed by the fusion of a sulfur compound with an alkaline metal. For example, the product obtained when lime and sulfur are heated was called calcareous hepars.
Synonyms and Related Terms
Sources Checked for Data in Record
- Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, Technology and Conservation, Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985